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SMS01GAF 데이터시트(PDF) 37 Page - Numonyx B.V

부품명 SMS01GAF
상세설명  64 MByte, 128 MByte, 256 MByte 512 MByte and 1 GByte, 3.3V Supply Secure Digital??Card
PDF  61 Pages
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제조업체  NUMONYX [Numonyx B.V]
홈페이지  http://www.numonyx.com
Logo NUMONYX - Numonyx B.V

SMS01GAF 데이터시트(HTML) 37 Page - Numonyx B.V

Back Button SMS01GAF Datasheet HTML 33Page - Numonyx B.V SMS01GAF Datasheet HTML 34Page - Numonyx B.V SMS01GAF Datasheet HTML 35Page - Numonyx B.V SMS01GAF Datasheet HTML 36Page - Numonyx B.V SMS01GAF Datasheet HTML 37Page - Numonyx B.V SMS01GAF Datasheet HTML 38Page - Numonyx B.V SMS01GAF Datasheet HTML 39Page - Numonyx B.V SMS01GAF Datasheet HTML 40Page - Numonyx B.V SMS01GAF Datasheet HTML 41Page - Numonyx B.V Next Button
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SMSxxxAF, SMSxxxFF, SMSxxxBF
Timings
37/61
6.1.5
Last Host Command, Next Host Command Timings
The host can send a new command NCC clock cycles after sending the previous one as
shown in Figure 21.
Figure 21.
Command Sequence (All Modes)
6.2
Data Read
6.2.1
Single Block Read
The host selects one card for the data read operation by issuing CMD7, and sets the valid
block length for oriented data transfer by issuing CMD16. Figure 22 shows the timings for a
basing bus read operation. The sequence starts with a Single Block Read command
(CMD17) which specifies the start address in the argument field. The response is sent on
the CMD line.
Data transmission from the card starts NAC after the end bit of the read command, where
NAC is the access time. CRC check bits are appended to the data bits to allow the host to
check for transmission errors.
Figure 22.
Single Block Read Command
6.2.2
Multiple Block Read
In Multiple Block Read mode, the card responds to the read command from the host by
sending a continuous flow of data blocks. The data flow is terminated by a
STOP_TRANSMISSION command (CMD12). Figure 23 describes the Multiple Block Read
command followed by the data blocks and Figure 24, the response to a
STOP_TRANSMISSION command. The data transmission stops two clock cycles after the
end bit of the STOP_TRANSMISSION command.
S
T
CONTENT
CRC E
Z
******
Z
S
T
Host Command
Host Command
NCC Cycles
ai10049
CONTENT
CRC E
CMD
S
T
CONTENT
CRC
E
Z
***
P
S
T
Host Command
Response
NCR Cycles
ai10050
CONTENT
CRC E
CMD
Z
P
Z
****
Z
Z
Z
Z
ZZ
Z
Z
P
**********
P
S
D
***
D
D
NAC Cycles
Read Data
DAT



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